IN the far north of Siberia, Russian scientists have stepped up research on a once-secret deposit of diamonds whose scale dwarfs anything ever discovered.
The deposit contains not the precious diamonds but the industrial strength "impact diamonds" that could be used for deep-sea drilling or forging finely delicate machine parts.
i think the impact diamonds referenced are also known as space diamonds, which are generally more valuable, though this much is uncertain, im not an expert on diamonds.
"Pokhilenko said that the diamonds owe their unparalleled hardness to enormous pressure and high temperatures at the moment of explosion when a giant meteorite hit 35 million years ago, leaving a 100-kilometer (60-mile) crater."
"They only examined 0.3 per cent of the entire territory of the crater and had already established 147 billion carats worth of (industrial) diamonds. So we are talking about many trillion (carats)," said the scientist.
those provide a good summary..full article -
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